11428711 has 6 divisors (see below), whose sum is σ = 13294680. Its totient is φ = 9795996.

The previous prime is 11428699. The next prime is 11428717. The reversal of 11428711 is 11782411.

It is not a de Polignac number, because 11428711 - 2¹¹ = 11426663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11428717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116571 + ... + 116668.

It is an arithmetic number, because the mean of its divisors is an integer number (2215780).

Almost surely, 2^11428711 is an apocalyptic number.

11428711 is a deficient number, since it is larger than the sum of its proper divisors (1865969).

11428711 is an equidigital number, since it uses as much as digits as its factorization.

11428711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233253 (or 233246 counting only the distinct ones).

The product of its digits is 448, while the sum is 25.

The square root of 11428711 is about 3380.6376617437. The cubic root of 11428711 is about 225.2504930385.

The spelling of 11428711 in words is "eleven million, four hundred twenty-eight thousand, seven hundred eleven".